That wire that's on the valve cover that goes to the firewall.. I'm pretty sure I'm getting interference from the last spark plug boot. The boot is loose (i know I need to replace the wire set)

But, until then, what can I do for this humming acceleration noise. It's a tad annoying.

Should I put on a new insulated wire? If so, what type/gauge works? And should I move the location of that wire as to let less interference? Sorry, The wire was a bit loose from it's connection on the valve cover, (hanging on by a thread) but I crimped it back in and soldered it a bit. Not sure if it's working..

Also too, is there a way to fix that spark plug boot that's loose? It's those damn Bougicord's and they're all good except for the one closest to the firewall. Newer set too, so I don't feel like I should replace them yet, but if I have to I will. With like, say... Magnecore? Last question, if I go the Magnecore route, 8mm is what I want, correct? Does anyone offhand know the part #?

'90 245 DL b230F 2.3 ltr M47II Diplomat Edition

Thanks again, Bork^3